وَبَدَا لَهُمْ سَيِّـَٔاتُ مَا كَسَبُوا۟ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ Qur’an Az-Zumar (39:48)Wabad a lahum sayyi a tu m a kasaboo wa ha qa bihim m a k a noo bihi yastahzioon a
Lit., "that which they were wont to deride will enfold them" or "will have enfolded them": i.e., the reality of life after death and of the spiritual truths preached by God's prophets will overwhelm them.
How humiliating it will be for them to realise that the things they used to mock at are realities all around them, and the things they were so eager to pursue are mere falsehoods or vanities!